subtle

/ˈsʌtl̩/

Proposed by a contributor, not yet supported by evidence.

Also seen as: subtler · subtlest · subtles · subtling

Sense 1

Meaning · English

Senses relating to tangible things. — Of an action or movement: very delicate or slight, and thus barely noticeable; not obvious; inconspicuous, unintrusive.

Adjective

Examples

The mighty Magnet from the Center darts / This ſtrong, tho' ſubtile Force, thro' all the Parts: / Its active Rays ejaculated thence, / Irradiate all the wide Circumference.

Usage example from English Wiktionary (CC BY-SA 4.0, retrieved 2026-08-01)

Sources & notes

Adapted from English Wiktionary (CC BY-SA 4.0, retrieved 2026-08-01 via kaikki.org).

Sense 2

Meaning · English

Senses relating to tangible things. — Of a substance, especially a gas or liquid: of low density or thin consistency; rarefied, tenuous; hence, tending to spread everywhere due to this quality.

Adjective

Sources & notes

Adapted from English Wiktionary (CC BY-SA 4.0, retrieved 2026-08-01 via kaikki.org).

Sense 3

Meaning · English

People or things that are subtle (adjective sense) as a class.

Noun

Sources & notes

Adapted from English Wiktionary (CC BY-SA 4.0, retrieved 2026-08-01 via kaikki.org).

Sense 4

Meaning · English

To make (something) subtle (“giving only a slight impression; also, skilfully restrained or understated”).

VerbRegister: US

Sources & notes

Adapted from English Wiktionary (CC BY-SA 4.0, retrieved 2026-08-01 via kaikki.org).

Common questions

What does “subtle” mean?

Senses relating to tangible things. — Of an action or movement: very delicate or slight, and thus barely noticeable; not obvious; inconspicuous, unintrusive.

Is “subtle” formal or informal?

No register label has been reviewed yet — treat it as neutral and check the usage notes above.